 |
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| FDS system; frequency division system; frequency-division switching system; frequency-division system | |||
| σύστημα διαίρεσης συχνότητας: 2 phrases in 2 subjects |
| Communications | 1 |
| Information technology | 1 |
|
| |||
| FDS system; frequency division system; frequency-division switching system; frequency-division system | |||
| σύστημα διαίρεσης συχνότητας: 2 phrases in 2 subjects |
| Communications | 1 |
| Information technology | 1 |